Aerotech:http://www.aerotech-rocketry.com/
Aerotech produce Solid Rocket Motors from 18mm diameter D-class to 98mm diameter N-class, as well as Hybrid Rocket Motors of 54mm diameter J-class and 98mm diameter M-class, as well as a range of rocket kits

Cesaroni - Hypertek Motors Site:http://www.hypertekhybrids.com/mainpage.html
Cesaroni's Hypertek Hybrid Rocket Motor website for their range of Hybrid Rocket motors from 54mm diameter I-class to 98mm diameter N-class, as well as full Ground Support Equipment.

Loc8tor - Rocket retrieval system:http://www.loc8tor.co.uk
Loc8tor is a hand held electronic homing device which can locate mini homing tags up to 600 feet away. An ideal gadget that will make sure you don't lose anything again!